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Using the updated proton and helium fluxes just released by the AMS-02experiment we reevaluate the secondary astrophysical antiproton to proton ratioand its uncertainties, and compare it with the ratio preliminarly reported byAMS-02. We find no unambiguous evidence for a significant excess with respectto expectations. Yet, some preference for a flatter energy dependence of thediffusion coefficient starts to emerge. Also, we provide a first assessment ofthe room left for exotic components such as Galactic Dark Matter annihilationor decay, deriving new stringent constraints.

AMS-02 antiprotons, at last! Secondary astrophysical component and immediate implications for Dark Matter